Green screen
Fill your entire screen with pure chroma-key green — a makeshift backdrop for small subjects, or a test field for stuck green subpixels. Click or press Esc to exit.
More color screens
Green screen FAQ
- Can I use my screen as a real green screen (chroma key)?
- For small subjects, yes — a monitor, TV, or tablet showing this page works as a makeshift chroma-key backdrop for product shots, miniatures, or a hand in frame. The full-screen green here is the saturated pure green keying software expects. Two caveats: keep the subject far enough forward that the screen stays out of focus, and watch for green light spilling onto the subject's edges.
- Why do professionals use fabric instead of a display?
- Scale and reflections. A display is small, emits light (so it can bloom and spill green onto the subject), and shows reflections of the room, which break the even color a clean key needs. Fabric or painted walls stay matte and uniform at any size. For anything larger than a tabletop subject, cloth wins — but for quick small-object shots, a screen is free and already in front of you.
- What does a green screen reveal about my display?
- It isolates the green subpixels — a dark dot that appears only on green is a dead green subpixel, and an off-color dot is a stuck one. Green is also where LCD panels are typically brightest, so uneven patches you spot here often point to backlight or uniformity issues worth confirming on the dedicated uniformity test.